The freezer

1. The temperature inside a freezer is minus 23 degree Celsius. The temperature falls by a further 12 degree degree Celsius. What is the new temperature?
2. What is the difference between temperatures of 12 degree Celsius and 210 degree Celsius?

Correct result:

a =  -35 °C
b =  -198 °C

Solution:

$a=-23-12=-35^{\circ }\text{C}$

$b=12-210=-198^{\circ }\text{C}$

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